Water Butt Tap Thread

cults3d

I was designing a water butt for my greenhouse, but I couldn't find a suitable brass fitting to get the job done. This threaded insert and flanged thread are designed to pass through a 30mm hole in a barrel or drum, utilizing your preferred sealing method on the inside of the flange to seal. I employed an O-ring, both inside and out for extra measure, but a washer or silicone would work just as well too. The outer thread, which mates with the printed nut, is M30x3.5. The inner thread is BSP 1/2", fitting most UK compression valves, simply with the olive and nut removed. Pipe tape is likely required to seal this connection.